Prong-insulator.



L. STEINBERGER. PRONG INSULATOR. APPLICATION FILED JULYIO 1905 PATBNTED JUNE 19, 1906.

, INVENTOR loazlrfiiaz'nZerg er AT'TORNVEYS WITNESSES:

a citizen of the United UNITED. STATES Louis srnrnsusona,

PATENT carton or NEW roan, N. r.

PRONGelNSULATOR.

To all whom it mar/concern:

Be it known that 1, Louis Srnrnn'nnenn, a States, and a resident of the city of New York, borough of Brooklyn, in the county of Kings and State of New York, have 'invented' a new and Improved Prong-lnsuiator, pfwhich the following is a full, clear, and exact description.

" My? invention relatesto insulators, my

more particular object beingto; produce a type. 16f so called pron insulator which may housed upon either t e upper side orthe lower side of a cross-arm, or mounted hori zontally on a support and which 'ofi'ers certa n constructional and insulating1 advantages, as "hereinafter descr bed, an pointed arm being out'in the claims. I v

Reference is tc'he had to the accompanyingdrawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in ah the figures.

Figure 1 is a side eievation cf the insu later as applied a cros-arIn',;-,thciatter being shonni in iongitudinai section. 2 is a front elevation of the insulator, the crossiikewise shot .1 in section. Fig. 3

' is a vertical section through *the insulator position 1 I and cross+arni, and Fig.4 is aside elevation showing the insulatoraspccupying another and; snow1ng the crossarm in sec- 'A cylindrical member 5 is provided with a I frustoconoidal portion 6 and with oppositelydisposed spouts'7, so shaped as to divert the water to the right and left, according to the view shown in Fig. -2. Intermediate arranged as to divert of these spouts are two other spouts 8 8, sothewater when the 1nsulator is in its reversed position; An an- 1 nular bead 14 is formed around themernher 5. .for the purpose of providin a'drip-point to prevent'undue wettin j10,"aa'will be understoo from ,Eig.-;3,"

when the insulator is mounte' v horizontally into a support This bead also increases the surface across whihh arcing tends to take place, and this increase in surface is of course independent of the position occupied by the insulator. The cylindrical portion 5 is .also provided with athreaded portion 9, which may be screwed into a cross-arm '10 or into any other form of support.

The spouts 7 are provided with upturned portions 7, which serve as guides for the water and direct-the flow of the same so as,

Specification of Letters Patent.

Application filed July 10,1905. Serial K042623352.

of the cross-arm I Patentediune 19, 1906;

metallic member 11 is provided with spiral prongs 12, made exactly alike, soas to engage a wire 13 in the manner indicated in Fig. 2 by pressing upon opposite sides there of: The wire when in position has 'a slight kink, due to the pressure of the prongs, as will be understood from Fig. 2.

The metallic member 11 comprises a stem portion 11 'a neck portion 11 and an enlarged ortion or head 11, the latter servin to 'anc or it securely within the threaded portion 9. 7

One of the main purposes of my pronged insulator is to facilitate the protection from the weather of either a wire or a cross-arm or other support, as the case may be, according to the position in which the insulator isplaced. To protect the cross-arm or support,-the insulator occupies the position indicated in Fig. 2, in which event the moisture collects and flows in opposite directions from the spouts 7. surface of the crossarm immediately below the spouts 7 is thus maintained comparatively dry, and the daner of an are occurring is greatly diminished. if it he desired to protect the wire, or rather the connection between the wire and the spiral prongs 12, this is accomplished by arranging the insulator asindicated in Fig. 4;

.When my insulator is mounted horizontally,

the annular bead near the threaded portion will act as a drip-point for the -moisture and will prevent'the moisture coming from the outer end of the insulator from reaching the supporter wall, orvice versa, It wiil be seen, therefore, that the insulator above described is reversible, that it may also be used horinontally, 'as above stated, and that it can be 'used without any change whatever in its construction for protectin either asupport or a conductor, and that t e spouts and the head above mentioned are so located "as to produce aninsula'tor'of the highest efficiency;

i to them are staggered relatively to other spouts,

and lso inverted relatively thereto.

3. An insulator, comprising a bod portion or insulatlng material prov ded wit a outs,

and a metallic member connected wit I said body'portion and provided with prongs disposed intermediate of said spouts.

- t. An insulator, comprising a body portion of insulating material provided with oppositely-disposed spouts, certain of said :3 outs being intermediate of certain other 0 said spouts and inverted relatively thereto so as to render said body portion reversible, all of said spouts being for directing the ow of moisture, and a metallic member connected With said body portion of insulating material.

rovided with raised walls 5. An insulator, comprising a metallic member and a body portion of insulating material, said body portion being provided with different groups of spouts located upon op 0- site sides thereof, the spouts of one grou eing inverted relatively to the spouts oi another group. t

6. An insulator comprising a reversible member provided with a plurality of s outs, certain of said spouts being inverts relatively to others, and means for mounting said member.

7. An insulator, comprising a reversible body portion of insulating material provided with spouts, one of said spoutsbeing inverted relatively to another, and a metallic member having a shank anchored Within said body portion of insulating material and provided with means for sup orting a conductor.

In testimony w ereof I have signed my name to this specification in the presence of two subscribing witnesses.

LOUES SlEINBERGERc Witnesses:

J. Li MOAULIFFE, EVERARD B. ll lARSHALL 

